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Cs6250 Computer Networks Practice Test 2026 Questions With Answers Graded A+

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CS6250 COMPUTER NETWORKS PRACTICE TEST 2026 QUESTIONS WITH ANSWERS GRADED A+

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CS6250 COMPUTER NETWORKS PRACTICE
TEST 2026 QUESTIONS WITH ANSWERS
GRADED A+
⩥ OSI 7 Layer Model. Answer:7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data Link
1. Physical


⩥ OSI 5 Layer Model. Answer:5. Application
4. Transport
3. Network
2. Data Link
1. Physical


⩥ OSI Model Advantages. Answer:- Scalability
- Modularity
- Flexibility

, ⩥ OSI Model Disadvantages. Answer:- Some layers depend on
information from other layers, which can violate goal of layer separation
- One layer may duplicate lower layer functionalities
- Additional overhead caused by abstraction between layers


⩥ Interface between the application layer & transport layer.
Answer:Sockets


⩥ Application Layer Protocols. Answer:HTTP, SMTP, FTP, DNS, etc.


⩥ What does the application layer do?. Answer:It is the layer which
interacts with the user to provide access to services and data that is
sent/received over a network.


⩥ What does the application layer call a packet of data?.
Answer:Message


⩥ Application layer service/interface/protocol. Answer:Whatever you
want


⩥ Application layer example. Answer:Turning a smartphone on &
looking at apps

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